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Send an image to Azure DevOps - HTTP request PATCH

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Posted on by aorro93

Hello,

I'm trying to send an image that is stored in a Datverse table to a work item to Azure DevOps. The step HTTP request (PATCH) is having errors. I've tried almost everything. Any idea what I can do? The following screenshots are from my flow:

Thanks

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Expiscornovus 33,183 Most Valuable Professional on at

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Hi @aorro93,

Looking at your screenshot I notice two things in the Patch request. The name property is missing within the attributes property. And it also looks like there are trailing white space characters in the Content-Type Header key and value fields. Can make sure you move any trailing white spaces over there?

If it helps here is an example which I recently used (tested and should work)

Sample payload

[ { "op": "add", "path": "/relations/-", "value": { "rel": "AttachedFile", "url": "https://dev.azure.com/<orgname>/_apis/wit/attachments/d828a9ef-fc71-430a-94a6-72dc754dc323?fileName=<filename>.docx", "attributes": { "comment": "Bug upload details", "name":"<filename>.docx" } } } ]

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aorro93 54 on at

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Thanks for your answer. I deleted the space in the Content-Type and added the field "name" (any name is possible?).
I still having an error:

The request indicated a Content-Type of "application/json-parse+json" for method type "PATCH" which is not supported. Valid content types for this method are: application/json-patch+json.

Details: {"$id":"1","innerException":null,"message":"The request indicated a Content-Type of \"application/json-parse+json\" for method type \"PATCH\" which is not supported. Valid content types for this method are: application/json-patch+json.","typeName":"Microsoft.VisualStudio.Services.WebApi.VssRequestContentTypeNotSupportedException, Microsoft.VisualStudio.Services.WebApi","typeKey":"VssRequestContentTypeNotSupportedException","errorCode":0,"eventId":3000}

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Expiscornovus 33,183 Most Valuable Professional on at

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Hi @aorro93,

Can you try the same Uri as me, which is a relative url not an absolute one?

Replace the <yourid> by your dynamic content field, btw

_apis/wit/workitems/<yourid>/?api-version=7.1-preview

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Expiscornovus 33,183 Most Valuable Professional on at

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Hi @aorro93,

Oh and I see you made a typo in the header as well. It is patch, not parse 😁

Your content-type header value

application/json-parse+json

The content-type value should be:

application/json-patch+json

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aorro93 54 on at

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Same error is shown

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Expiscornovus 33,183 Most Valuable Professional on at

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Hi @aorro93,

See my last reply. Did you check your parse typo in the header?

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aorro93 54 on at

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Oh! that's true, thanks! I have a new error, is it possible that the image of Dataverse table have to be transform to base64?

You must pass a valid patch document in the body of the request.

Details: {"$id":"1","innerException":null,"message":"You must pass a valid patch document in the body of the request.","typeName":"Microsoft.VisualStudio.Services.Common.VssPropertyValidationException, Microsoft.VisualStudio.Services.Common","typeKey":"VssPropertyValidationException","errorCode":0,"eventId":3000}

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Expiscornovus 33,183 Most Valuable Professional on at

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Hi @aorro93,

I haven't tested that specific scenario before.

Looking at the screenshot of your opening post I would say you are missing something in the POST request (the upload part of your flow). I see you haven't included the file content in the Body (Cuerpo) field?

Have a look at some examples in the Attachments - Create POST doc.

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aorro93 54 on at

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Yes, but I added, I just forgot it when the screenshot.
Right now, I've changed this part:

Reading the documentation, it's not clear for me if I only have to use the step POST to add the image?

Thank you!

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Expiscornovus 33,183 Most Valuable Professional on at

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Hi @aorro93,

Is that content base64 already, can you check in the flow run inputs section of that request? If not, can you turn it into base64 by using the base64 function in an expression?

Btw, the generic approach is

- Use a POST request to upload the file

- Use a PATCH request to add a link between the work item and the uploaded file

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